Olivier Teller

19 November 2014

Pumped Hydro Storage Plants

Grenoble

© ALSTOM 2013. All rights reserved. Information contained in this document is indicative only. No representation or warranty is given or should be relied on that it is complete or correct or will apply to any particular project. This will depend on the technical and commercial circumstances. It is provided without liability and is subject to change without notice. Reproduction, use or disclosure to third parties, without express written authority, is strictly prohibited.

Presentation title - 20/11/2014 – P 2

Three main activities in four sectors

Equipment & services for power generation

Equipment & services for rail transport

Equipment & services for power transmission

Alstom Thermal Power Alstom Grid

Alstom Renewable Power Alstom Transport

© ALSTOM 2013. All rights reserved. Information contained in this document is indicative only. No representation or warranty is given or should be relied on that it is complete or correct or will apply to any particular project. This will depend on the technical and commercial circumstances. It is provided without liability and is subject to change without notice. Reproduction, use or disclosure to third parties, without express written authority, is strictly prohibited.

Presentation title - 20/11/2014 – P 3

Alstom Renewable PowerTechnologies adapted to all renewable energy sources

HYDRO WIND

GEOTHERMALSOLAR THERMAL

INDUSTRIAL STEAM TURBINES

BIOMASS

OCEAN

…for new plants and the installed base

© ALSTOM 2013. All rights reserved. Information contained in this document is indicative only. No representation or warranty is given or should be relied on that it is complete or correct or will apply to any particular project. This will depend on the technical and commercial circumstances. It is provided without liability and is subject to change without notice. Reproduction, use or disclosure to third parties, without express written authority, is strictly prohibited.

Presentation title - 20/11/2014 – P 4

Alstom, the leading supplier in hydropowerfor over 100 years

A global leader

• from water to wire

• for new plants

& the installed base

• for service & retrofit

Alstom accounts for over 25% of world’s hydro power plants

© ALSTOM 2013. All rights reserved. Information contained in this document is indicative only. No representation or warranty is given or should be relied on that it is complete or correct or will apply to any particular project. This will depend on the technical and commercial circumstances. It is provided without liability and is subject to change without notice. Reproduction, use or disclosure to third parties, without express written authority, is strictly prohibited.

Presentation title - 20/11/2014 – P 5

PlantIntegrator™

The broadest hydropower portfolio

TURBINE

GENERATOR HYDRO MECHANICAL

SERVICE & RETROFIT

GRID SOLUTIONS

© ALSTOM 2013. All rights reserved. Information contained in this document is indicative only. No representation or warranty is given or should be relied on that it is complete or correct or will apply to any particular project. This will depend on the technical and commercial circumstances. It is provided without liability and is subject to change without notice. Reproduction, use or disclosure to third parties, without express written authority, is strictly prohibited.

CONTROL SYSTEM

BALANCE OF PLANT

Turnkey plant or individual products

© ALSTOM 2013. All rights reserved. Information contained in this document is indicative only. No representation or warranty is given or should be relied on that it is complete or correct or will apply to any particular project. This will depend on the technical and commercial circumstances. It is provided without liability and is subject to change without notice. Reproduction, use or disclosure to third parties, without express written authority, is strictly prohibited.

Presentation title - 20/11/2014 – P 6

Turbines and Generators

Bulb Kaplan Francis Pump Turbine Pelton

Low Speed Low Speed Medium Speed MotorGenerator High Speed

Product Portfolio Hydro Business

© ALSTOM 2013. All rights reserved. Information contained in this document is indicative only. No representation or warranty is given or should be relied on that it is complete or correct or will apply to any particular project. This will depend on the technical and commercial circumstances. It is provided without liability and is subject to change without notice. Reproduction, use or disclosure to third parties, without express written authority, is strictly prohibited.

Presentation title - 20/11/2014 – P 7

A reliable large-scale storage solution:Pumped Hydro Storage Plants (PSPs)

© ALSTOM 2013. All rights reserved. Information contained in this document is indicative only. No representation or warranty is given or should be relied on that it is complete or correct or will apply to any particular project. This will depend on the technical and commercial circumstances. It is provided without liability and is subject to change without notice. Reproduction, use or disclosure to third parties, without express written authority, is strictly prohibited.

Presentation title - 20/11/2014 – P 8

PSP in Europe

199 plants,

48,8 GW turbine capacity

537 machines with

a pumping mode (representing

a turbine capacity of 46,6 GW)

© ALSTOM 2013. All rights reserved. Information contained in this document is indicative only. No representation or warranty is given or should be relied on that it is complete or correct or will apply to any particular project. This will depend on the technical and commercial circumstances. It is provided without liability and is subject to change without notice. Reproduction, use or disclosure to third parties, without express written authority, is strictly prohibited.

Presentation title - 20/11/2014 – P 9

Alstom ongoing PSP Projects Worldwide

SWITZERLAND

NANT DE DRANCE

6 units of 150 MWVariable Speed 305 m – 428.6 rpm

LINTH-LIMMERN

4 units of 250 MWVariable Speed 613 m – 500 rpm

PORTUGAL

ALQUEVA II

2 units of 130 MW

72 m – 428.6 rpm

SALAMONDE II

1 unit of 209 MW

115 m – 166,7 rpmINDIA

TEHRI

4 units of 250 MWVariable speed

188 m - 233 rpm

ZHANGHEWAN

4 units of 255 MW

305 m – 333.3 rpm

HOHHOT

4 units of 306 MW

521 m - 500 rpm

PUSHIHE

4 units of 306MW

308m–333.3 rpm

CHINA

ISRAEL

GILBOA

2 units of 150 MW

430 m - 750 rpm

Equipment + O&M

FRANCE

REVIN

4 units of 200 MW

Rehabilitation

240 m – 300 rpm

LE CHEYLAS

1 units of 256 MW

Upgrade to variable

speed

254 m – 300 rpm

© ALSTOM 2013. All rights reserved. Information contained in this document is indicative only. No representation or warranty is given or should be relied on that it is complete or correct or will apply to any particular project. This will depend on the technical and commercial circumstances. It is provided without liability and is subject to change without notice. Reproduction, use or disclosure to third parties, without express written authority, is strictly prohibited.

Presentation title - 20/11/2014 – P 10- - P 10

What PSP Does

Provide flexibility to balance base load generation

Complement intermittent renewable energies

Optimise electrical grids

© ALSTOM 2013. All rights reserved. Information contained in this document is indicative only. No representation or warranty is given or should be relied on that it is complete or correct or will apply to any particular project. This will depend on the technical and commercial circumstances. It is provided without liability and is subject to change without notice. Reproduction, use or disclosure to third parties, without express written authority, is strictly prohibited.

Presentation title - 20/11/2014 – P 11

Thermal & Nuclear plants optimisation

Time

Power(GW)

242322212019181716151413121110987654321

Adjustable GenerationPSP, Gas turbine, Hydro

PSP Pumping

Consumption

Base Load GenerationNuclear, Coal, Run of the river hydro, …

© ALSTOM 2013. All rights reserved. Information contained in this document is indicative only. No representation or warranty is given or should be relied on that it is complete or correct or will apply to any particular project. This will depend on the technical and commercial circumstances. It is provided without liability and is subject to change without notice. Reproduction, use or disclosure to third parties, without express written authority, is strictly prohibited.

Presentation title - 20/11/2014 – P 12

Baseload (non flexible)

Wind energy

Demand

Flexible Generation

Excess windPo

we

r

Time

1min

GWRegulation

Actual Generation

Forecast

1h

Ramp RateGW

Intermittent

Balancing

load

Generation

24h

GW Time Shift

New need for flexibility

© ALSTOM 2013. All rights reserved. Information contained in this document is indicative only. No representation or warranty is given or should be relied on that it is complete or correct or will apply to any particular project. This will depend on the technical and commercial circumstances. It is provided without liability and is subject to change without notice. Reproduction, use or disclosure to third parties, without express written authority, is strictly prohibited.

Presentation title - 20/11/2014 – P 13

Increase of unit cycling

© ALSTOM 2013. All rights reserved. Information contained in this document is indicative only. No representation or warranty is given or should be relied on that it is complete or correct or will apply to any particular project. This will depend on the technical and commercial circumstances. It is provided without liability and is subject to change without notice. Reproduction, use or disclosure to third parties, without express written authority, is strictly prohibited.

Presentation title - 20/11/2014 – P 14

0

1200000

2400000

3600000

4800000

6000000

7200000

8400000

9600000

10800000

12000000

Unit 1 2005-2007

2006

Increased partial load operation

0

2400000

4800000

7200000

9600000

12000000

14400000

16800000

19200000

21600000

24000000Unit 1 2008-2010

2009

© ALSTOM 2013. All rights reserved. Information contained in this document is indicative only. No representation or warranty is given or should be relied on that it is complete or correct or will apply to any particular project. This will depend on the technical and commercial circumstances. It is provided without liability and is subject to change without notice. Reproduction, use or disclosure to third parties, without express written authority, is strictly prohibited.

Presentation title - 20/11/2014 – P 15

PSP Development Trends

Performance improvement• Efficiency: 70 to 80% in 40 y.

• Availability, Reliability, Cycling

Overcoming topological limitation• Very High or Very Low Head

• Head range increase

• Underground reservoir

• Sea water operation

Maximising flexibility• Variable Speed offering

• Power range increase

• Reaction time reduction

© ALSTOM 2013. All rights reserved. Information contained in this document is indicative only. No representation or warranty is given or should be relied on that it is complete or correct or will apply to any particular project. This will depend on the technical and commercial circumstances. It is provided without liability and is subject to change without notice. Reproduction, use or disclosure to third parties, without express written authority, is strictly prohibited.

Presentation title - 20/11/2014 – P 16

Variable speed PSP

Double Fed Asynchronous Motor Generator

• Adjustable pumping power

• Compatible with larger head variation

• Faster power adjustment

• Pump Turbine global efficiency (+ ~ 1%)

© ALSTOM 2013. All rights reserved. Information contained in this document is indicative only. No representation or warranty is given or should be relied on that it is complete or correct or will apply to any particular project. This will depend on the technical and commercial circumstances. It is provided without liability and is subject to change without notice. Reproduction, use or disclosure to third parties, without express written authority, is strictly prohibited.

Presentation title - 20/11/2014 – P 17

PSP allows Renewable to remain Renewable

Customised solutions for each application

Economical feasibility highly depends on

regulatory framework

www.alstom.com